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Process Equipment and Plant Design

Process Equipment and Plant Design
With increase in the number of shell passes, the value of FT

Increases
Remains same
Remains same, only if the number of tube passes does not change
Decreases

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Process Equipment and Plant Design
For a given design of bubble cap, the number of bubble caps to be used per tray is set by the

All of these
Plate spacing
Diameter of the column
Allowable gas velocity through the slots

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Process Equipment and Plant Design
The operating velocity in the absorption tower is usually 40-50% of the flooding velocity. Packed absorption towers are normally designed for a pressure drop of about __________ mm of water column per metre height of packing.

20-40
1000-1500
43835
100-150

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Process Equipment and Plant Design
What is the value of 'q' for saturated vapor feed to a distillation column ?(where q = fraction of the feed stream that is liquid.)

1
> 1

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Process Equipment and Plant Design
Excessive liquid gradient on a tray may result in the

Maldistribution of gas
Back trapping
All of these
Gas blowing beneath cap skit

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Process Equipment and Plant Design
If a single tube pass heat exchanger is converted to two passes; for the same flow rate, the pressure drop per unit length in tube side will __________ times.

Increase by 1.8
None of these
Decrease by 22
Increase by 21.6

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